APA aipamena

Robert J. Dixson. (1992). Modern American English: Workbook 4. Englewood Cliffs, New Jersey: Prentice Hall.

Chicago Style aipamena

Robert J. Dixson. Modern American English: Workbook 4. Englewood Cliffs, New Jersey: Prentice Hall, 1992.

MLA aipamena

Robert J. Dixson. Modern American English: Workbook 4. Englewood Cliffs, New Jersey: Prentice Hall, 1992.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.